Bolster for steam-shovels.



W. SHBPPARD.

BGLSTBR Foe STEAM sHoVBLs.

APYLGATION FILED APRA/1, 1909.

I NV N T R mail@ M16@ Atty.

Patented Sept. 21, 1909. 2 SHEETS-SHEET l.

Wl' NESSES W. SHEPPARD.

BOLSTER FOB STEAM SHOVELS.

APPLICATION FILED APR.2, 1909.

Patented Sept. 21. 1909.

2 SHEETS-SHEET 2.

. y INVEHTOR Mal/U I (.1. fa@ Atty.

man". L ma rnoruumownlins, WAMW. u. a

WILLIAM SHEPPARD, OF PATERSON, NEY'V JERSEY MOTIVE COMPANY, OF NEVIYORK, N. Y., A C

BOLSTER FOR STEAIVI-SHOVELS.

Application filed April 2,

Specification oi Letters Patent.

1909. Serial No. 487,580.

To all whom it muy concern.'

Be it known that l, lilium). Siiailifiiio, of Paterson, in the countyor' Passaic and State of New Jersey, have invented a certain new anduseful niprovemeiit in lolsters for tflteain-Shovels, ot' whichimprovement the following is a specilication.

The object ot' my invention is to provide simple and eli'ective meanswhereby a steam shovel which is supported on ordinary car trucks Jfortraversing railroad tracks may be readily adapted to be moved overcommon roads, or one which is supported on road wheels may bc fittedwith car wheels, as cire cumstances may, in either case, require, thechange being eliected with an economy of time and material andfacilities atl'orded for tiussing the axles of road wheels.

The improvement claimed is hereinafter fully set forth.

ln the accompanying drawings: Figure l is a side view, in elevation, ofthe frame ol a steam shovel, supported on trucks for running' on arailroad; Fig. 2, an end view or' the saine; Fig. 3, a longitudinalcentral section of the saine, supported on road wheels by theapplication of my invention; Fig. d, a vertical transverse section,taken in the "flans ot a road axle; Fig'. 5, a top view, on

an enlarged scale, of a bolster embodying' my invent-ion, when appliedas shown in Fig. 4e; Fig. G, a side view of the saine, and, Figs. 7, 8,and 9, vertical transverse sections, on a further enlarged scale,through the bolster, on the lines am, oo, and co, respectively, of Fig.G.

My invention is herein shown as applied in connection with the traine,l, of a steam shovel, the operative mechanism of which may be of anysuitable known type, and which, as it does not form any part of myinvention, is not illustrated. As shown in Figs. l and 2, the steamshovel frame, including, of course, whatever mechanism may be carriedthereon, is adapted to travel on a railroad track, being supported onand carried by two car trucks, 2, 2, which may be of any suitable andpreferred type, and are adapted to swivel, in the usual manner, aboutpivots or center pins near the ends of the frame.

In order to enable the steam shovel to be readily adapted to be moved,on road wheels, over' common roads, or if originally supported on roadwheels, to be transferred to l car trucks for ruiming over ra l provide,i'or one ot frame, a cast metal reversible is a beam,

to say, having a central. w and bottom lateral tlanges, from each sidethereof. The

l ster, being the tace next is tapered or ter bearing,

or near each ot' its ends.

2b, of the truck, and the itorated with a plurality of bolster issecured to the tran are used.

When it is desired to mount or turned over, as shown in ter bearing, 3C,is fitted in a rator or bearing casting,

shovel from road wheels to a shown in Fig. 2.

The opposite end of the frame is indicated in Fig. on road wheels orlargerl versible bolster' is applied. of said opposite end of the fPatented tieAL disposed in two parallel rows, tor the passage ot shortstraight bolts, Ll, by which the ASSIGNOR TO ATIERICAN LOCO- GRPORATIONOF NEVI YORK.

at. si, ieee.

ilroad tracks, l

the end portions oit' the bolster, which of substantially l-i section,that eb, 3, and top 3U, pvi'ojecting top or the boltlie frame, l, whenthe same is supported on trucks, as shown in Fig. 2, is llat, and thebottoni of the bolster inclined from a (':ylindrical cen- 8, whichprojects below it, and lits in the center casting, 211, of the truck, toSide bearingsL 8d, are formed on the bolster, at a proper distance apartto stand over the side bearings, top i'langes are per bolt holes, o,

ie when trucks the frame and the steam shovel carried upon it, on roadwheels, 5, for transportation on common roads, the bolster is removedand reversed F ig. d; the censoclet in a sepala, lixed to the frame ofthe steam shovel; and the axle, 5a, is secured to the bolster (l,passing through the bolt holes, 3e, and made tight by nuts, Ga,

n this position 3d, ot the bolster stand below corresponding sidebearings, lb, fixed to ecured, at one end, to a brace casting, 4th,fixed to the botand is secured, at its opthe frame, l,

the axle, which does not It will be seen acts as a truss or brace forthereby enabling much lighter than would otherwise be practicable. Tochange the support it to be made of the steam truck, the bolster islocated and secured iu the position steam shovel rame, a device ofdifferent construction is provided, Which, as it does not form part ofmy present invention and constitutes the subject matter of a separateapplication iled by me May l0, 1909, Ser. No. 495,082 Will not be hereinset forth.

The improved reversible bolster above described is of substantial andinexpensive construction, and of ready applicability in connection withthe steam shovel frames and trucks in ordinary use. Its advantages, inctfecting the transfer from one to the other class of supports, and instrengthening the road axle, Will be obvious to those skilled in theoperation or' mechanism of the character to which my invention relates.

I claim as my invention and desire to secure by Letters Patent:

l. T he combination of a steam shovel Jframe, a reversible bolsteradapted for connection either to a railroad car truck or to a Wheeledroad axle, a Wheeled support, and bolts for connecting said bolster tothe frame or to the Wheeled support.

2. The combination of a steam shovel frame, a reversible bolster adaptedfor connection either to a railroad car truck or to a Wheeled road axle,and having a plurality of bolt holes on one of its faces, and a centerbearing on its opposite face, a Wheeled support, and bolts for securingthe bolster, through its bolt holes, either to the frame or to theWheeled support.

3. The combination of a steam shovel frame, a reversible bolster havinga fiat ir'ace secured detachably to the frame and a center bearing on anopposite face Which is upwardly inclined on each side of said bearing,and a railroad car truck having a center bearing fitting that of thebolster.

t. A reversible bolster for the frame of a steam shovel, having one ofits longitudinal faces hat, and its opposite :tace upwardly inclinedfrom points near its ends to its middle, a cylindrical center bearingprojecting from the middle of its double inclined face, side bearingsprojecting 'from said face on opposite sides of the center bearing, andtwo rows of parallel bolt holes in its fiat face.

VILLIAM SHEPPARD. lVitnesses SAMUEL PERGEY, CHARLES EVANS.

